Music, it's creation, quality, advancement, and direction, will almost always be determined by WHAT THE AUDIENCE IS WILLING TO ACCEPT. if garbage becomes popular and makes money, then it will be mass-produced ad nauseum until the next 'trend' comes along. The once popular 'jazz' ran it's course and gave way to a simpler (and supposedly more 'accessible') musical form known as 'rock-n-roll', which took the world by storm. Not only could more people dance to it, sing along to it, but also PLAY it (3 chords is easier than 30).
As humans, we constantly strive to make life easier, not always to our betterment (fast foods, instant coffee, rock-n-roll). In time we delude ourselves into believing that a Big Mac is just as good as a perfectly grilled steak (and all it takes is a quick credit card swipe). Music, however, is somewhat more complicated. We can use all kinds of tools, including arranger keyboards, in a creative way to produce worthwhile musical performances. The problem (IN MY OPINION) is when the technology, in this case the arranger keyboard, is used to REPLACE a basic knowledge of music, a lack of talent, and a lack of playing skills. What is interesting, and noted many times from the PLAYERS on THIS forum, is the mention of the pleasure derived from just sitting down occasionally at their acoustic (or digital) pianos or guitars and just playing (with no technological assist).
There are sound economic (AND creative) reasons to include arranger keyboards in one's musical arsenal but I hope technology never replaces artistry and a sound musical background (including theory and performance) as the future of music making.
chas
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"Faith means not wanting to know what is true." [Nietzsche]